PCPP1 Advanced Object Oriented Programming Practice Question
How do you implement the 'Strategy' pattern in Python?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
By passing strategy instances into the context constructor.
By injecting different strategy objects into a context class, which then delegates operations to the injected object.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
By using a large switch-case statement.
Why it's wrong here
This is what the pattern aims to avoid.
- ✗
By creating a metaclass for all strategies.
Why it's wrong here
Metaclasses are unnecessary complexity.
- ✓
By passing strategy instances into the context constructor.
Why this is correct
Dependency injection is a key part of the Strategy pattern.
- ✗
By using inheritance for every strategy.
Why it's wrong here
Composition is preferred over inheritance for strategies.
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Last reviewed August 2026 · checked against the official Python Institute exam blueprint
This PCPP1 practice question is part of Courseiva's free Python Institute certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCPP1 exam.